I am looking to buy a good portable jump starter for a Christmas present. I have been thru two junk units and am looking for a good one for car and marine use as well. Do not care anything about an air compressor in the unit, just maybe a built in light.

Anyone with suggestions on a good one?

Thanks

The8Ball

12-05-2010, 12:59 PM

Ditto! ... also looking... I have checked on line, looks like these things run from $100 to $150... would love to know as well...

1redTA

12-05-2010, 02:01 PM

I had a black and decker jump box that worked pretty well for 3-5 years. It had a small light power inverter and air compressor. You could charge it with AC or DC and was nice to have when camping and boating.

For about $50 less you can buy the next one smaller with 250 cranking amps. It works ok on a car with a weak battery, but if it's really dead the larger booster pack is your best bet.

chippy1971

12-05-2010, 09:13 PM

The thing with all jump batteries is not so much the jump battery itself it is more will it cause a short on the electrics when it is disconnected.

You need to ensure that it comes with a safety mechanism to ensure that when the motor is now running on the car / boat battery and the alternator that the drain on the system does not send a spike down the link and kill the electrics in the boat.

Lars

12-06-2010, 12:01 AM

The thing with all jump batteries is not so much the jump battery itself it is more will it cause a short on the electrics when it is disconnected.

You need to ensure that it comes with a safety mechanism to ensure that when the motor is now running on the car / boat battery and the alternator that the drain on the system does not send a spike down the link and kill the electrics in the boat.

I'm sort of tracking with you on this, but can you explain this phenomenon a bit more? When you disconnect the jump pack it sends a spike in voltage through the electrical system??

chippy1971

12-06-2010, 12:05 AM

Well it can short out things, remember if you have a fuel injection system the engine will have an ECU ( electronic control unit ) that is the brains for the motor.

If that gets a spike or surge of power there is a chance it could get damaged.

So what I am saying is don't just by the cheapest one, find one that has surge protection built it and you should be safe.

If you spend $200 now you could save yourself thousands later.

dpolen

12-06-2010, 09:18 AM

Here's another plug for the Black and Decker unit that 1redTA mentioned. I've had one of these for a couple years now and it has saved my day on the lake several times when someone (me) forgets to turn off a switch as I'm putting the boat away. I charge it up like once a month and just store it in the boat or leave it in the car while on the lake.